1286401453 has 2 divisors, whose sum is σ = 1286401454. Its totient is φ = 1286401452.

The previous prime is 1286401447. The next prime is 1286401537. The reversal of 1286401453 is 3541046821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1278992169 + 7409284 = 35763^2 + 2722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1286401453 is a prime.

It is a super-2 number, since 2×1286401453² = 3309657396561022418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1286401433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643200726 + 643200727.

It is an arithmetic number, because the mean of its divisors is an integer number (643200727).

Almost surely, 2^1286401453 is an apocalyptic number.

It is an amenable number.

1286401453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1286401453 is an equidigital number, since it uses as much as digits as its factorization.

1286401453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1286401453 is about 35866.4390900463. The cubic root of 1286401453 is about 1087.5740601873.

The spelling of 1286401453 in words is "one billion, two hundred eighty-six million, four hundred one thousand, four hundred fifty-three".